package com.itheima.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理
 */
@RestControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobaIExceptionHandler {
    /**
     * 异常处理方法
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.info(ex.getMessage());
        /**
         * 处理重复用户名(账号)问题
         */
        if (ex.getMessage().contains("Duplicate entry")){ //Duplicate entry 键重复
            String[] s = ex.getMessage().split(" ");
            String msg = s[2] + "已存在";
            return R.error(msg);
        }
        return R.error("未知异常");
    }
}
